The Mastic Doctor team standing beside their branded vans outside an office building
Na h-Eileanan Siar · Scotland

Commercial sealant contractors in Sandwick, Na h-Eileanan Siar

Work needed on a sealant joint in Sandwick? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Leaks that seem to come through a sealant line
  • Untidy joints in a reception, shop floor or lobby
  • A top-up bead over failed sealant, now lifting
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Commercial sealant contractors across Sandwick

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Commercial mastic work in Sandwick

On older buildings, particularly those put up before 2000, some old mastics and sealants may contain asbestos. We ask to see the asbestos register or survey before old sealant is disturbed, because the duty to manage asbestos sits with the dutyholder. Anything suspect is left alone until it has been tested (removing asbestos-containing materials isn’t something we do). If you have water staining near frames, panels or ceilings and external beads that have gone brittle and cracked, we can put it right, on window and door perimeters, movement joints in walls and floors and kitchen worktops and splashbacks alike. Searching for sealant specialists in Sandwick? We have been sealing commercial buildings since 2005.

A lot of what we do in Sandwick is replacing sealant that has done its years: hardened, cracked or shrunk away from the faces, and letting water or dirt in.

For a job around Sandwick, the Scottish weather is part of the planning: sealant needs a dry joint and the right temperature, so external work has a weather window built in. Indoor work isn’t held up by rain.

Every job we finish is backed by a 12-month workmanship guarantee, in Sandwick as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Location
Sandwick (HS1, HS2)
Wider area
Na h-Eileanan Siar
Cover
12 months on our workmanship
Price
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Shops, offices and hotels in and around Sandwick

Sandwick sits close to the coast, within about 1 mile. For shops, hotels and offices, that means frontage and frame joints that weather faster than they would inland. A matched colour is only half the brief on an exposed frontage. A 2-mile radius around Sandwick takes in several hotels. Hotel refurbishments are where a matched sealant colour earns its place: bathroom, bar and reception joints have to sit with the finishes, and the work can be phased so the rest of the hotel keeps trading.

A business with units at Parkend Industrial Estate and Gleann Seileach Business Park needn’t use two contractors for its sealant. If you run a unit on an estate such as Parkend Industrial Estate, 0.5 miles south-east of Sandwick, the trade counter, offices and staff facilities have joints to look after as well as the warehouse.

Sandwick is about 1 mile south-east of Stornoway, in Na h-Eileanan Siar. Looking for commercial sealant contractors in Sandwick? We can help. We work across 87 places in Na h-Eileanan Siar, from busy centres to rural villages.

Commercial sites across HS1 and HS2 are covered. Buildings on Stoneyfield, East Street and Olivers Brae are within our area. Nearby places we also cover include Plasterfield (1 mile north), Sanndabhaig (1 mile east), Steinis (1 mile north), Stornoway (1 mile north-west) and Branahuie (1 mile east). Remote and island addresses take more planning, from travel and ferries to the weather, so mention the location when you ring 01277 525 020 or send photos by email.

Landmarks near Sandwick

Nearby you will also find Western Isles Hospital (1.5 miles north-west) and Lewis Loom Centre (1.3 miles west). Not far away are Loch Àirigh na Lic.

Map of Sandwick © OpenStreetMap contributors

Why deal with it now?

Sealant is often treated as an afterthought by the trade that fitted the element. Choosing the product, setting the depth and preparing the faces are what a specialist brings, and they’re where most failures begin. You notice the difference years later, not on the day. Exposed buildings in Scotland take a lot of weather, and for a smaller place like Sandwick, a repair visit takes planning, so it’s better to act early.

A quote for sealant joints depends on quantities, condition and access, and any specification that applies. Ask us for a fixed quote.

What you get with us

  • Workmanship guaranteed for 12 months
  • Fully insured
  • Products installed to the manufacturer’s instructions
  • Matching to RAL references, product permitting

See how commercial sealant jobs are priced or how we’re accredited.

How the job changes by surface

Shop fronts and retail fit-outs

Retail work typically has to fit around trading. We plan around the access windows the store gives us, working in sections where that helps.

Movement joints in walls and floors

Movement joints in walls and floors let the structure expand and contract. Failed seals let grit and water in, and the edges start to suffer. The joints are resealed using a sealant matched to the movement and any traffic.

How a job runs

We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Where we can, we combine work around Sandwick with other jobs nearby, to make the most of each trip. Let us know if your dates have any give.

  1. Send details through our quote form, or ask for a site visit.
  2. We diagnose the cause of failure and price a fixed scope.
  3. Where parts of the building must stay open, the work is phased.
  4. Old sealant is cut out completely, never sealed over.
  5. A suitable product for each joint goes in at the right depth and is tooled.
  6. A final walk-round, then the 12-month guarantee applies.

Getting the site ready

  • Share your working hours and any access restrictions
  • Have the specification and drawings to hand
  • Clear stock, furniture or equipment away from the joints

Quotes

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, ring 01277 525 020 or send details through our quote form.

Get a price

Related advice

When something else is needed

Being straight saves everyone time. New sealant won’t cure:

  • Misted, cracked or failed glazing units (a glazier’s job)
  • A failed roof covering or waterproofing membrane
  • Removing asbestos-containing materials (a licensed or specialist contractor’s job)

If in doubt, ring 01277 525 020 or email a schedule or drawings and we will say what we think.

Where we work in Sandwick

  • Floor and threshold joints
  • Movement joints in walls and floors
  • External facade joints
  • Washrooms and tea points
  • Kitchen worktops and splashbacks
  • Window and door perimeters

Quoting for work in Sandwick

Each job is priced on its own details. The things that drive the figure:

  • Access and working height
  • Quantities, in metres or numbers
  • The site’s rules and procedures
  • Which sealant the job calls for

The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a quote once you have the details.

What we need to price the job

The more we know, the firmer the quote. When you get in touch, include:

  • The site address and postcode
  • Clear photos of the problem areas
  • Whether an asbestos survey exists
  • How the joints are reached, and at what height

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, phone 01277 525 020 or email a schedule or drawings.

Questions about Sandwick

Does a hotel in Sandwick need to shut while its sealant is renewed?

Rarely. Rooms or floors are done in turn, so the rest of the hotel keeps trading. We agree the order of rooms and the timings with you before we start.

Is Sandwick inside the area you cover, given it’s on an island?

Yes, Sandwick is within the area we cover. Every Scottish council area is within our area. Ferry times and the weather set the plan, so we ask for photos and a full list first.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.

Do you seal on top of existing sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Do you work directly for building managers?

Yes. A large share of our work comes through facilities managers, managing agents and landlords. We can work to your instruction process and site rules.

How long does a typical visit take?

We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.

Do you check for asbestos before removing sealant?

It’s possible in older buildings, especially those built before 2000. We ask to see the asbestos register or survey before disturbing old sealant, and if something is suspected, work stops until it’s tested.

When to call us in Sandwick

The wrong sealant in the wrong place is a common cause of early failure. Painters’ acrylic in a moving joint, vinegar-smelling silicone on metal or natural stone, or a high-modulus product where a low-modulus one was needed will all fail early. Guidance such as BS 6213 exists to steer sealant selection for exactly this reason, and many specifications refer to it.

Any of the following is a good reason to get the joints checked over:

  • External beads that have gone brittle and cracked
  • Messy, uneven beads from earlier work that let the building down
  • Frame mastic that has hardened and come away from the wall
  • Wall and floor joints that have lost their seal

For a hotel such as County Hotel, 1.2 miles west of Sandwick, the colour of a joint at the bar or the bath matters to the look of the room.

What your quote should include

  • Can the work be phased to keep areas open?
  • Which product they’ll use, and why it suits the joint
  • How they handle RAMS and site documents
  • Health and safety accreditation such as CHAS

How to choose a sealant contractor

Accreditations

Trusted. Accredited. Insured.